The calculation has provided that in the nonuniform flow field the curve of pitchingmoment may be distorted.
计算证明在非均匀流场中俯仰力矩曲线可能发生畸变。
2
Starting with airfoil 2, the pitchingmoment is increased from -. 15 to -. 25 to provide more aft loading and aft camber.
从翼型2俯仰时刻由原来的15年至今25年至今，以提供更多后部后部拱落。
3
A numerical method is given to calculate the unsteady lift, pitchingmoment and drag acting on an airfoil of rotors under attached-flow conditions in a compressible flow.